peters



UNITED sTATEs PATENT oEErcE.

RUFUS DAWES AND W. G. CHOATE, OF WASHINGTON, DISTRICT OF COLUMBIA.

STOVE.

Specification of Letters Patent No. 24,798, dated July 1,9, 1859.

To all whom it may concern:

Be it known that we, RUrUs DAwEs and WARREN C. OHOATE, of Washington, in the District of Columbia, have jointly invented a new and improved stove for the distribution of flame and heat, and for cooking purposes by means of a new and improved combination or arrangement which admits of the use of every kind of solid fuel without the escape of smoke, which is eifectually consumed, and by which every kind of family cooking may be done without the annoyance of offensive vapor; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters marked thereon.

Figure I, shows a perspective front view of the stove, it represents the lire-room, A, having' a horizontal grate at the bottom, and a movable upright grate t in front, with the door B which closes the front air-tight in that direction, and the lid C which in combination with the door B renders the tireroom air-tight throughout, the lid C having a double circular valve to admit sufficient air to sustain combustion, or to shut it off entirely. D', D, show two lower ovens closed, while L, L, show two upper movable ovens closed; K, K, show funnels attached, and opening from the uper and movable ovens; H, represents the hearth; I, I, the ash-room which is indeed the broad flue under the fire-room and ovens D D; I being the door to the ash-room which lits airtight. The reason for the peculiar construction of the ash-room is that the combustion being very complete, the residuum is too small for any obstruction of the fines; M, M, represent handles to the cut-offs or dampers, that diminish or cut-o the communication of flame or hot air into one or both of the ovens D, D.

Fig. II, shows an inside view of a longitudinal section of the stove; D, D, represent the two lower ovens having double walls for the passage of ame and hot air; the arrows showing their direction from the bottom of the fire-room at O, into the flue and ashroom, I, thence up through opposite directions around the ovens D, D, into the chimney, F, m', m', showing the cutoff or dampers already mentioned under Fig. I. p is the bottom grate resting on bars of iron g, g. The upper plate of ovens D, D, have ventilations fr, 1", with valves for carrying off vapor from within them; s, s, are indentations for small boilers, not immediately in contact with the iiues; L, L, are the upper movable ovens with the vapor funnels K, K, attached. a: is a door for establishing a draft by applying burning paper or other substances before applying fire to the coal at the fire-room.

Fig. III, shows an inside view of a transverse section of the stove, exhibiting the inside of the fire-room; p the horizontal grate or bottom resting on the bar g; B, the door of the upright or front grate t; C the lid to the top of the fire-room; m m the handle and cuto for the ovens D, D; m cutoE to the flame to the large boiler E on the back part of the stove; the arrows indicating the direction of flame from the posterior part of the fire-room around the guide a, into the flue G, to the chimney F; L shows the inside of one of the upper ovens.

Fig. IV shows a back view of the stove having a hollow hearth for the large boiler E- U being an additional door for cleaning the ash-room.

The manner of using this stove is by filling the grate or lire-room with hard or soft coal nearly to the top, overlaying it with a little charcoal or light kindling-stun", then after warming the funnel as above directed, apply live coals or burning paper to the charcoal or other kindling stuff, having' first closed the door on the funnel at Keep the door of the upright grate closed, and as soon as the kindling commences shut the lid with its valve opened according to circu1n stances. When once the draft is established, the smoke passing through live coal is perfectly consumed; and fresh fuel is supplied as required; But very great economy is effected by keeping it as airtight as is consistent with the required heat.

We do not claim a downward draft, nor double walls to the ovens; but

What*J We claim as our joiniJ invention and system of ovens heated and ventilated, as desire to secure by Letters Patent, isspecified. i

The combination of a new fire-room for a RUFUS DAWES. y downward draft, having a lid to close the WARREN C. CHOATE. 5 opening at the top, containing a Valve in the Witnesses:

lid, and an open grate in fi'ont-7 having a B. W. FERGUSON, door to close this opening air-tight, with a DANL. HANNAN. 

